Publications by authors named "Zhu Chen-Chen"

Changes in DNA methylation and subsequent alterations in gene expression have opened a new direction in research related to the pathogenesis of peripheral neuropathic pain (PNP). This study aimed to reveal epigenetic perturbations underlying DNA methylation in the dorsal root ganglion (DRG) of rats with peripheral nerve injury in response to prior exercise and identify potential target genes involved. Male Sprague-Dawley rats were divided into three groups, namely, chronic constriction injury (CCI) of the sciatic nerve, CCI with prior 6-week swimming training (CCI_Ex), and sham operated (Sham).

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  • - Gestational Trophoblastic Neoplasia (GTN) is a serious tumor arising from trophoblastic cells, with the study showing increased levels of DLX4 in GTN tissues and cell lines.
  • - Bioinformatic analysis indicates that DLX4 is often overexpressed in various cancers and correlates with poor survival rates and immune-related genes.
  • - Although manipulating DLX4 levels does not change GTN cell growth, it influences PD-L1 expression through GATA1, suggesting DLX4 could be a potential target for cancer treatment.
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  • Exercise has been shown to help reduce neuropathic pain (NP) through various mechanisms, including inflammation and neurochemical changes.
  • Neuroglia, which are cells that support and maintain neurons, play a significant role in the development of NP and can be influenced by exercise.
  • The article aims to provide insights into how understanding neuroglia’s role can inform effective exercise treatment strategies for managing NP.
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  • Cholestatic liver diseases (CLD) lead to bile acid buildup in the liver, causing damage, and the study explores the protective effects of wedelolactone (WED), a natural compound, on this condition.
  • The research investigates how WED alleviates bile acid-induced liver injury in mice, focusing on its mechanisms, including metabolic changes and its interaction with the Farnesoid X receptor (FXR).
  • Results show that WED reduces liver damage and inflammation by regulating bile acid metabolism and influencing specific signaling pathways, highlighting its potential as a treatment for cholestatic liver injury.
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  • Diquafosol tetrasodium (DQS) is a drug for dry eye treatment, but its clinical use has been limited due to a complex dosing schedule.
  • A new affinity hydrogel formulation (3% DQS Gel) was developed to allow for sustained release of DQS, improving its effectiveness for ocular surface drug delivery.
  • Studies showed that the 3% DQS Gel was more effective than other treatments in a mouse model of dry eye, suggesting this delivery method could benefit other similar hydrophilic drugs as well.
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This paper aims to use low-cost stainless steel wire mesh (SSWM) as uniform templates to prepare disposable three-dimensional (3D) carbon electrodes to improve their analytical performance. Native SSWM electrodes were prepared with lamination and then coated with carbon cement for bulk preparation of disposable 3D carbon electrodes with drop-casting. The electrodes were then coupled in paper-based analytical devices.

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Children's shoes are potential sources of toxic heavy metals, especially for younger children. Electrochemical detection could be applied for effective stripping analysis of heavy metals (such as Cd and Pb). However, the substrates of working electrodes are still limited and it is not well known which property is critical.

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Unlabelled: Fungal growth-dependent gene coregulation is strongly implicated in alteration of gene-encoding target proteases ruling with an antifungal resistance niche and biology of resistant mutants. On the basis of multi-alterative processes in this platform, the resistance-modifying strategy is designed in ketoconazole resistant Candida albicans and evaluated with less selective Momordica charantia protein and allosterically phosphorylated derivatives at the Thr102, Thr24 and Thr255 sites, respectively. We demonstrate absolutely chemo-sensitizing efficacy regarding stepwise-modifying resistance in sensitivity, by a load of only 26.

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  • Diffuse pulmonary ossification (DPO) is a rare lung disease where bone tissue forms inappropriately, classified into idiopathic (IPO) and secondary types based on known causes.
  • Whole exome sequencing (WES) was performed on a patient with IPO and his healthy parents to identify genetic variants potentially involved in the disease.
  • The study found 40 harmful genetic variants, including a novel variant (c.G2960T:p.R987L), which may play a role in IPO development.
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Five new amide alkaloids, named delamide A-E (1-5), along with five known ones, methyl-N-(3-carboxy-2-methylpropanoyl) anthranilate (6), benzoic acid, 2-[(1-oxodecyl) amino]-methylester (7), puberline (8), benzoic acid, 2-[(4-methoxy-2-methyl-1, 4-dioxobutyl) amino]-methylester (9) and benzoic acid, 2-[(4-methoxy-3-methyl-1, 4-dioxobutyl) amino]-methylester (10) were isolated from the extract of Delphinium brunonianum. Their structures were elucidated by extensive spectroscopic analyses (including 1D-, 2D-NMR, and HR-ESI-MS). 1-10 were also evaluated for their acetylcholinesterase (AChE) inhibiting activity by the Ellman's method.

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  • - The study aimed to assess the effectiveness and side effects of the VMP chemotherapy regimen (vincristine, methotrexate, and platinum) in 87 patients with low-risk gestational trophoblastic neoplasia treated at Anhui provincial hospital from 2005 to 2017.
  • - The first-line application of the VMP regimen resulted in an 83.8% remission rate, although resistance was observed in patients with higher pretreatment β-hCG levels, while the second-line use following methotrexate failure achieved a 89.5% remission rate.
  • - Overall, the VMP regimen was determined to be a safe and effective treatment for low-risk gestational trophoblastic neoplasia, with
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In clinical, L. was often substitute for to treat cancer in China. Meanwhile, EtOAc and n-BuOH fractions of MeOH extract of L.

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Background: Chronic obstructive pulmonary disease (COPD) is characterized by continuous flow limitation and the immune system including macrophages and regulatory T lymphocytes (Tregs) is involved in COPD pathogenesis. In our previous study, we investigated that TGF-β/BAMBI pathway was associated with COPD by regulating the balance of Th17/Treg. However, the role of bone morphogenetic protein and activin membrane-bound inhibitor (BAMBI), a pseudoreceptor of TGF-β signalling pathway, in regulating the immune system of COPD patients has not been fully studied.

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The metabolic and pharmacokinetic studies on complanatuside, a quality marker of a Chinese materia medicatonic, , were carried out. The UHPLC-Q-TOF/MS (ultra-high performance liquid chromatography coupled with electrospray ionization tandem quadrupole-time-of-flight mass spectrometry) method was applied to identify the metabolites of complanatuside in rat plasma, bile, stool, and urine after oral administration at the dosage of 72 mg/kg. Up to 34 metabolites (parent, 2 metabolites of the parent drug, and 31 metabolites of the degradation products) were observed, including processes of demethylation, hydroxylation, glucuronidation, sulfonation, and dehydration.

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Quality control of Chinese herbal tea remains a challenge due to our poor knowledge of their complex chemical profile. This study aims to investigate the chemical composition of one of the best-selling and famous brand of beverage in China, Wanglaoji Herbal Tea (WLJHT), via a full component quantitative analysis. In this paper, a total of thirty-two representative constituents were identified or tentatively characterized using ultra-high performance liquid chromatography coupled with quadrupole tandem time-of-flight mass spectrometry (UPLC-Q-TOF-MS).

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In this study, a systematic method was established for the holistic quality control of Ilex kudingcha C. J. Tseng, a popular functional drink for adjuvant treatment of diabetes, hypertension, obesity and hyperlipidemia.

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In physiological condition, the interaction of acteoside and forsythoside B with calf thymus DNA using neutral red (NR) as a fluorescence probe were investigated by fluorescence, UV-visible spectrophotometry, viscosity, DNA melting techniques, and molecular docking. It is observed that acteoside and forsythoside B can react with DNA. The major mode of recognition between drug and DNA is groove binding by hydrogen bonds, and the interaction of acteoside with DNA is stronger than that of forsythoside B.

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The present study was designed to determine the chemical constituents of Delphinium caeruleum Jacq. ex Camb..

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  • The study aimed to create a High-Performance Liquid Chromatography (HPLC) fingerprint for the plants Nerviliae fordii and Nervilia plicata to assess their authenticity and quality.
  • Using a specific HPLC method, researchers analyzed 15 batches of Nerviliae fordii and 5 batches of Nervilia plicata, noting significant differences between the two species.
  • The developed HPLC fingerprint method proved to be a quick and effective tool for distinguishing between these plants, which can enhance quality control measures for Nerviliae fordii.
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Two new abietane diterpenoids, Gerardianin B (1) and Gerardianin C (2), one new lignan glycoside, Gerardianin D (3) and one new lupane-type triterpenoid, Gerardianol A (4), together with seven known abietane diterpenoids were isolated from the aerial parts of Rabdosia lophanthoides var. gerardianus. Their structures were determined by 1D and 2D NMR spectroscopic data.

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  • Flavonoids are diverse polyphenolic compounds found in plants that exhibit significant biological activities, and this study focuses on four specific flavonoids extracted from a Tibetan medicinal herb.
  • The research employed various methods like fluorescence and molecular modeling to examine how these flavonoids interact with human serum albumin (HSA), including how biological metal ions like Mg, Zn, and Cu influence their binding affinity.
  • The study delves into the structure-activity relationships of these flavonoids with HSA, revealing that one binding site in HSA shows minimal changes despite the presence of different flavonoids, based on conformation analyses.
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A RP-HPLC method was developed to evaluate the quality of Picrasmae Ramulus et Folium by simultaneous determination of five constituents including 1-hydroxymethyl-beta-carboline (1), 1-methoxicabony-beta-carboline (2), 4-methoxy-5-hydroxy-canthin-6-one (3), 4, 5-dimethoxy-canthin-6-one (4) and maackiain (5) in Picrasmae Ramulus et Folium. The samples were separated on a Kromasil RP-C18 (4.6 mm x 250 mm, 5 microm) column eluted with acetonitrile and 0.

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Aim: Antioxidant activity is one of the important indexes for estimating medicinal value for the traditional Chinese medicine. The aim of this study is to investigate the antioxidant activity of 11 flavonoids mainly revealing luteolin as mother nucleus isolated from Pyrethrum tatsienense.

Materials And Methods: The antioxidant activity of 11 flavonoids was measured in vitro using the classical 1,1-diphenyl-2-picrylhydrazyl removal method.

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A HPLC-ELSD method was developed and validated for simultaneous determination of five Hetisane-type diterpenoid alkaloids in a Tibetan traditional herbal medicine, "" (), using a Kromasil C column (250 mm×4.6 mm, 5 μm) with the mobile phase consisting of acetonitrile and 0.1% triethylamine in gradient (detected by evaporative light scattering detector).

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